WO2002077406A1 - Tete de foreuse a percussion - Google Patents

Tete de foreuse a percussion Download PDF

Info

Publication number
WO2002077406A1
WO2002077406A1 PCT/EP2002/002870 EP0202870W WO02077406A1 WO 2002077406 A1 WO2002077406 A1 WO 2002077406A1 EP 0202870 W EP0202870 W EP 0202870W WO 02077406 A1 WO02077406 A1 WO 02077406A1
Authority
WO
WIPO (PCT)
Prior art keywords
head
percussion
impact
chisel
striking
Prior art date
Application number
PCT/EP2002/002870
Other languages
German (de)
English (en)
Inventor
Frank Hofmann
Original Assignee
Tracto-Technik Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tracto-Technik Gmbh filed Critical Tracto-Technik Gmbh
Priority to US10/471,967 priority Critical patent/US7093677B2/en
Priority to GB0322179A priority patent/GB2391240B/en
Publication of WO2002077406A1 publication Critical patent/WO2002077406A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/04—Directional drilling
    • E21B7/046—Directional drilling horizontal drilling
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/36—Percussion drill bits
    • E21B10/40—Percussion drill bits with leading portion
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/06—Down-hole impacting means, e.g. hammers
    • E21B4/14—Fluid operated hammers
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/06—Down-hole impacting means, e.g. hammers
    • E21B4/14—Fluid operated hammers
    • E21B4/145—Fluid operated hammers of the self propelled-type, e.g. with a reverse mode to retract the device from the hole

Definitions

  • the invention relates to a drill head and a method for hitting drilling devices in the field of horizontal drilling technology and claims the priorities of German patent application 101 12 985.8, to which reference is made in terms of content.
  • a hammer provided in the impact device When drilling horizontally with an impact device, a hammer provided in the impact device is accelerated, for example with a pressure medium source such as water, air or other media.
  • the kinetic energy of the hammer is fed into the drill head without braking when the drill is being driven.
  • the mass of the entire drilling device in the ground, including the pressure hose, must be accelerated for locomotion.
  • the skin friction of the drilling device with the surrounding soil must be overcome and displacement work must be carried out in the area of the drilling head. All of this is done by the percussion piston.
  • a jacking head which, movable in the axial direction, is connected to the impact device. This achieves a decoupling of the forward movement of the propulsion head and the impact device, which means that the entire impact energy of the impact piston is available in a first step in the propulsion head for displacement work and for the destruction of obstacles. Only when the obstacle in the working face has been overcome, i.e. the way for the jacking head is clear, is the driving energy of the percussion piston no longer exclusively into the working face via the jacking head, but to a large extent via the connection between the jacking head and the housing of the impact device Impact device initiated so that this is tightened.
  • Such a jacking head has proven itself in practice and has been used in horizontal impact jacking for many years. However, depending on the dimensioning of the impact device or the persistence of the obstacle to be overcome, there are limits to the use of the described driving head for a given impact energy.
  • the invention is based on the object of creating a striking head which provides an improved energy yield for propulsion, in particular in obstacle-rich soils, and to provide a corresponding method.
  • the invention is based on the idea of using the impact energy to be introduced into the impact head even more specifically by providing at least one three-stage energy input.
  • the object of the invention is not limited to a three-stage energy input, since the number of stages can be as large as desired, but is described below with reference to this.
  • the three-stage introduction of energy allows the impact energy to be used in a first step, for example to overcome a rock-like obstacle, essentially to smash or otherwise remove the obstacle.
  • This can be achieved by two or more elements that are axially movable relative to one another.
  • Axial does not mean that the elements must lie on a geometric axis.
  • the axes of the pulse course can deviate from the geometric axis, for example in the steering direction.
  • the impact energy can be introduced into the rock at high concentration via an axially movable impact tip, without losing energy to move the impact device or the rest of the impact head.
  • the impact energy of the piston can be used in the second stage to "widen" the pre-drilled borehole in the first stage.
  • the prefabricated borehole then already has the diameter of the machine housing or more.
  • the entire impact energy can be used for propulsion.
  • the impact energy is then when there are no significant resistances to be overcome with the impact head tip and the remaining impact head, largely completely introduced into the body of the impact device to overcome the skin friction and thus for locomotion.
  • the striking head can have two elements which are axially movable relative to one another.
  • the percussion head can have a displacement element which is connected to the body of the impact device in an axially displaceable manner and a chisel tip (impact tip) which can be mounted centrally or eccentrically in the displacement element and is axially movably connected to the displacement element.
  • the connection between percussion tip and displacement element on the one hand and displacement element and body of the percussion device on the other hand have a front and a rear stop which defines the axial stroke of the respective percussion element.
  • the displacement element is preferably designed as a displacement ring with a central axial bore for the impact tip.
  • the displacement element can also have a bore that deviates from the drill axis either at an angle or parallel to the implement axis.
  • the percussion tip preferably extends in one piece from the tip of the percussion head through the displacement element into the chamber of the percussion piston, the term “in one piece” being understood in terms of force and not in terms of materials.
  • the chisel can also be composed of two or more non-positively connected elements.
  • the chisel or the other striking head elements can be held in the contracted basic position by a spring element, so that the axially displaceable striking head elements automatically return to their basic position after the ramming caused by the percussion piston.
  • Fig. 5 shows another embodiment of the head according to the invention.
  • Fig. 6 shows another embodiment of the head according to the invention.
  • the first functional position shows the hammer head in a fully contracted state.
  • the striking head 1 has a chisel 2 with a striking tip 4 and an anvil 5 for the striking piston 40.
  • the striking tip has a step geometry and has a cutting edge 6.
  • the chisel 2 is arranged in a bore in the base 7, which also serves as an adapter for screwing into the impact device body (not shown).
  • the chisel 2 In its front area, the chisel 2 has a step attachment 8 which is axially fixed with respect to the chisel and a step attachment 10 which is axially displaceable with respect to the chisel.
  • a prestressed spring 12 is provided in an annular space 11 of the striking head base 7 in order to hold the chisel 2 in its basic position or push it back into this. 4 to 6, an embodiment without a spring is shown.
  • the attachment 8 is fixed on the chisel 2 with bolts 14, 16.
  • the attachment 10 is displaceable between a front stop 32 and a rear stop 34 relative to the attachment 8 and relative to the base 7 of the striking head.
  • the ratio of the step-like displacement sections 22, 24 and 26, 28, 30 to one another, in conjunction with the chisel head 4, defines the ratio of the force distribution between the shattering and displacement work.
  • the attachment 8 can be omitted, so that the displacement work is essentially carried out by the displacement attachment 10. This can also be achieved in that the displacement attachment 8 is fixed with respect to the displacement attachment 10 and is axially displaceable with respect to the chisel 2.
  • the sliding sleeves 8, 10 connected in the manner of sliding sleeves have the sealing means 18, 20 at their connecting points.
  • FIGS. 2 and 3 show the exit of the chisel 2 from the striking head 1 in a first section, whereby an annular space 36 is created, and the exit of the displacement attachment 10 from the striking head 1 in a second section, whereby an annular space 38 arises.
  • the spring 12 causes a refraction of the chisel 2, which at the same time pushes the displacement attachment 10 back into its basic position.
  • 4 shows an embodiment without a spring, in which the refraction is brought about by the feed acting on the base 7, which pushes the telescopically extended head back together.
  • FIGS. 5 and 6 have a special configuration in the area of the anvil 5.
  • the impact pulse is transmitted from the piston 40 to the base 7 via the chisel 2.
  • the impact pulse is first transmitted to the chisel 2 and then to the base 7 via the stop 45, while the chisel 2 is limited in the forward direction by the cone 39.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)

Abstract

L'invention concerne un procédé et un dispositif de forage horizontal, qui comprend une foreuse à percussion et une tête d'impact (1) montée rotative axialement par rapport à la perceuse à percussion, l'impulsion de percussion étant transmise au moins en trois étapes. Cette tête d'impact (1) présente une pointe (4), un élément de déplacement (10) servant à déplacer la terre et une base (7) reliée à la foreuse à percussion.
PCT/EP2002/002870 2001-03-17 2002-03-14 Tete de foreuse a percussion WO2002077406A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US10/471,967 US7093677B2 (en) 2001-03-17 2002-03-14 Percussion drill head
GB0322179A GB2391240B (en) 2001-03-17 2002-03-14 Percussion drill head

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10112985A DE10112985B4 (de) 2001-03-17 2001-03-17 Schlagbohrkopf und ein Verfahren zum Horizontalbohren mit einem Schlaggerät
DE10112985.8 2001-03-17

Publications (1)

Publication Number Publication Date
WO2002077406A1 true WO2002077406A1 (fr) 2002-10-03

Family

ID=7677890

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/002870 WO2002077406A1 (fr) 2001-03-17 2002-03-14 Tete de foreuse a percussion

Country Status (4)

Country Link
US (1) US7093677B2 (fr)
DE (1) DE10112985B4 (fr)
GB (1) GB2391240B (fr)
WO (1) WO2002077406A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2474703A1 (fr) * 2011-01-11 2012-07-11 British Telecommunications Public Limited Company Bélier de percement

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7938205B2 (en) 2004-07-06 2011-05-10 Tracto-Technik Gmbh Boring head method and boring head for a ground boring device
DE102004032551B4 (de) * 2004-07-06 2015-07-23 Tracto-Technik Gmbh Bohrkopf
US20060232824A1 (en) * 2005-04-18 2006-10-19 Nelson Webb T Novelty engraving device, system and method of operation
US8196677B2 (en) * 2009-08-04 2012-06-12 Pioneer One, Inc. Horizontal drilling system
DE102010015465A1 (de) * 2010-04-16 2011-10-20 Tracto-Technik Gmbh & Co. Kg Erdbohrvorrichtung
DE102014016154A1 (de) * 2014-11-04 2016-05-04 Tracto-Technik Gmbh & Co. Kg Rammbohrvorrichtung
US10438833B2 (en) 2016-02-16 2019-10-08 Lam Research Corporation Wafer lift ring system for wafer transfer
US10641051B1 (en) * 2016-09-07 2020-05-05 Dandelion Energy, Inc. Systems and methods for coupling and decoupling drill heads for ground loop preparation for geothermal applications
DE102017005767B4 (de) * 2017-06-20 2019-04-25 Tracto-Technik Gmbh & Co. Kg Erdbohrvorrichtung, Verfahren zu dessen Herstellung und Verwenden eines Fügeprozesses
SE542632C2 (en) * 2018-09-28 2020-06-23 Cell Impact Ab A method and an apparatus for material forming
DE102019000932A1 (de) * 2019-02-11 2020-08-13 Tracto-Technik Gmbh & Co. Kg Vorrichtung zum Bohren in Erdreich, Verfahren zum Herstellen einer Vorrichtung zum Bohren in Erdreich, Verfahren zum Warten einer Vorrichtung zum Bohren in Erdreich und Verwendung einer Vorrichtung zum Bohren in Erdreich
DE102019005132B4 (de) 2019-07-24 2023-10-19 Tracto-Technik Gmbh & Co. Kg Selbstgetriebener Bohrkopf
DE102020005128A1 (de) 2020-08-21 2022-02-24 Tracto-Technik Gmbh & Co. Kg Bohrkopf für eine schlagend verdrängende Erdbohrvorrichtung und Verwendung eines Borhkopfs für eine schlagend verdrängende Erdbohrvorrichtung
EP4336015A1 (fr) 2022-09-12 2024-03-13 TRACTO-TECHNIK GmbH & Co. KG Affût pour un dispositif de forage terrestre autopropulsé

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3865200A (en) * 1971-11-18 1975-02-11 Tracto Technik Burrowing apparatus
US4133395A (en) * 1976-07-09 1979-01-09 Paul Schmidt Earth boring assembly with drag pipe
US4221157A (en) * 1976-07-29 1980-09-09 Paul Schmidt Pneumatically operated percussion boring apparatus
DE19804919A1 (de) * 1998-02-07 1999-08-19 Tracto Technik Rammbohrgerät
EP0964133A1 (fr) * 1998-05-27 1999-12-15 Tracto-Technik Paul Schmidt Spezialmaschinen Boítier pour transmetteur

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2558842A1 (de) * 1975-12-27 1977-07-07 Paul Schmidt Selbstgetriebenes pneumatisches rammbohrgeraet, insbesondere fuer erdbohrungen
DE3533955A1 (de) * 1985-09-24 1987-03-26 Festo Kg Kolben-zylinder-anordnung
DE3533995A1 (de) 1985-09-24 1987-04-16 Tracto Technik Rammbohrgeraet mit schlagmesserkolben
DE3735018C2 (de) * 1987-07-25 1995-02-16 Schmidt Paul Rammbohrgerät
US5221157A (en) * 1990-12-28 1993-06-22 Prestedge Gordon K Revetments and units for use in constructing revetments

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3865200A (en) * 1971-11-18 1975-02-11 Tracto Technik Burrowing apparatus
US4133395A (en) * 1976-07-09 1979-01-09 Paul Schmidt Earth boring assembly with drag pipe
US4221157A (en) * 1976-07-29 1980-09-09 Paul Schmidt Pneumatically operated percussion boring apparatus
DE19804919A1 (de) * 1998-02-07 1999-08-19 Tracto Technik Rammbohrgerät
EP0964133A1 (fr) * 1998-05-27 1999-12-15 Tracto-Technik Paul Schmidt Spezialmaschinen Boítier pour transmetteur

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2474703A1 (fr) * 2011-01-11 2012-07-11 British Telecommunications Public Limited Company Bélier de percement
WO2012095625A1 (fr) * 2011-01-11 2012-07-19 British Telecommunications Public Limited Company Trépan de forage
US9546519B2 (en) 2011-01-11 2017-01-17 British Telecommunications Public Limited Company Boring ram

Also Published As

Publication number Publication date
US7093677B2 (en) 2006-08-22
GB2391240A (en) 2004-02-04
DE10112985A1 (de) 2002-10-02
DE10112985B4 (de) 2006-03-02
GB2391240B (en) 2005-02-16
GB0322179D0 (en) 2003-10-22
US20040112638A1 (en) 2004-06-17

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